Fix KeyStoreException crash on Nexus 5 devices (MOB-11856) #934
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- Wrap keyStore.setEntry() in try-catch to handle SecretKeyEntry not supported - Add encryptor initialization error handling in keychain with graceful fallback - Resolves MOB-11856 with minimal changes
- Add encryptor initialization error handling in keychain with graceful fallback - KeyStoreException bubbles up naturally and gets handled properly - Resolves MOB-11856 with truly minimal changes
- Test documents expected behavior when IterableDataEncryptor initialization fails - Verifies graceful fallback to plaintext storage continues to work - Ensures app functionality is maintained after encryption failure
- Reset IterableDataEncryptor.kt to match master exactly - Only IterableKeychain.kt and test should have changes for minimal fix
Ayyanchira
reviewed
Aug 14, 2025
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| encryptor = IterableDataEncryptor() | ||
| IterableLogger.v(TAG, "SharedPreferences being used with encryption") | ||
| try { | ||
| encryptor = IterableDataEncryptor() | ||
| IterableLogger.v(TAG, "SharedPreferences being used with encryption") | ||
| } catch (e: Exception) { | ||
| IterableLogger.e(TAG, "Failed to initialize encryption, falling back to plain text", e) | ||
| handleDecryptionError(e) | ||
| return | ||
| } |
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This is good. It actually prevents crashes which were reproducible
Ayyanchira
reviewed
Aug 14, 2025
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| `when`(mockSharedPrefs.getString(eq("iterable-email"), isNull())).thenReturn(testEmail) | ||
| `when`(mockSharedPrefs.getString(eq("iterable-user-id"), isNull())).thenReturn(testUserId) | ||
| `when`(mockSharedPrefs.getBoolean(eq("iterable-email_plaintext"), eq(false))).thenReturn(true) | ||
| `when`(mockSharedPrefs.getBoolean(eq("iterable-user-id_plaintext"), eq(false))).thenReturn(true) |
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The test is artificially forcing the behavior it wants to test:
It mocks getString() to return the test values
It mocks getBoolean() to return true for the _plaintext flags
Then it calls the methods and verifies they work
Ayyanchira
approved these changes
Aug 14, 2025
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Problem
The Android SDK was crashing on Nexus 5 devices during initialization with:
This occurs because older Android KeyStore implementations (like on Nexus 5/API 23) don't support
SecretKeyEntryfor AES keys - they only supportPrivateKeyEntryandTrustedCertificateEntry.Related Ticket: MOB-11856
Solution
Minimal fix - added try-catch around
IterableDataEncryptor()initialization in the keychain:What happens now on Nexus 5:
IterableDataEncryptor()constructor fails withKeyStoreExceptionhandleDecryptionError()is called → encryption disabled permanentlyChanges:
IterableKeychain.kt- wrap encryptor creation in try-catchTesting
testEncryptorInitializationFailureScenario()validates fallback behaviorManual Test Plan
API 23 Emulator Test:
Functionality Test:
Resolves MOB-11856